Lock-strike.



J. 'DEININGER.

LOOK STRIKE.

JOHN DEININGER, OF ULM, GERMANY.

LOCK-STRIKE.

Specification of Letters Patent.

Application filed December 12, 1908.

Patented Sept. 19, 1911.

Serial No. 467,164.

To all whom it may concern:

Be it known that I, JOHN DEININGER, a citizen of the German Empire, residing at Ulm a. D., in the Kingdom of Wurttemberg, Empire of Germany, have invented certain new and useful Improvements in Connection with Lock-Strikes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has for its object an improved form of construction of a well known arrangement for preventing the rattling of the latch, bolt, or the like in looks. In this known arrangement a stop or contact piece is provided, which must be adjusted by hand, in order to prevent the bolt rattling. Now accordin to the present invention such an adjustment is rendered need less, as an inclined surface is provided for this object, by means of which the bolt or the like is diverted in its forward movement, and which is preferably so arranged that it adjusts itself automatically, so that the latch each time is supported and pressure exerted on it whereby rattling is always prevented. The inclined surface may be provided on the striking-plate or on the bolt.

The invention will now be more particularly described in several forms of construction, with reference to the accompanying drawings, in which:

Figure 1 is a front view and partial section of such an arrangement; Fig. 2, an end view of same; Fig. 3, a cross section.

The bolt a, or the like, of the look Z) engages in known manner through an aperture 6 of the face plate of the look 5 into the latch or bolt hole 0 of the striking plate m, which is fixed in the door framing cl.

The bolt, latch or the like is shown at a and runs up a slide piece 9 which is under the action of a spring 71 which presses this piece forward. The slide piece g is carried in fixed guides Z of the door frame (Z and in its forward movement runs up an inclined surface is which is fixed to the striking-plate m. The bolt a in its forward movement thus encounters the slide piece 9 and pushes the latter as far back as is necessary, while the latter itself engages behind the bolt a, in order to prevent rattling.

I declare that what I claim is In a latch, the combination with a bolt, a striking plate having a bolt hole and having an inclined surface, a slide piece engaging said inclined surface and movable in fixed guides in the door frame, and a spring controlling the slide piece to force it into the path of the bolt.

In testimony whereof I afiix my signature, in presence of two Witnesses.

JOHN DEININGER.

Witnesses J EAN GULDEN, HERMANN HoPrE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

